Automotive radioreceiver



A April 9, 1935- J. B. FoRsYTHE Er AL 1,997,254

AUTOMOTIVE ADIORECEIVER Filed Sept. 23, 1952 l3 Sheets-.Sheet 1 April 9, 1935. J. B. FoRsYTHE Er AL 1,997,254

` AUTOMOTIVE RADIoREcEIvER- Filed sept. 25, 1952 's sheets-sheet 2 I MMMWQ April 9, 1935.

J. B. FORsY-rHE E'r AL AUTOMOTIVE VRADIORECEIVER Filed Sept. 23, 1932 s Smeets-sheet s l y a ,1f 8 -2 J'A'Mfs 5. from: v rHe, He/rmsr L. Bfr/MP, mm

Fn y C. 2L/s Patented pr. 9', 1935 .-AU'roMoTrvE RADIoREoEIvER poration of Delaware yApplication September 23, 1il 3`2`, SerialNd 634,520

` 5 claims. (0 1. 25e-44) This-invention relates to radio receiveFS, and

more particularly to the type of receiver for auto-k motive or vehicular installation,

@ne ef the obieete ef the invention a radio receiver within the body of an automotive or other vehicle so as to be conveniently accessible Without being unduly conspicuous. This has been accomplished bysecuring a ledge to the receiver to which is nxed theselector mechanism for operating therreeeiver, and thence mounting the receiver andV thev s elector'mechanism behind'ine instrument panel or cowl beard of the vehicle so that thecontrols of the selector mechanism are substantially. coincident with the controls of the instrument panel, and closely associated therewith.

Another object of the invention isftoprovide means for supporting aradio receiver-upon a vehicle so as to absorb the major portion of the shock that would otherwise be transmitted to the receiver. I his has been accomplished by interposing vibration absorbing elements b etween the connection of` the` receiver with the said veel hicle. Y Another object of the invention is to provide a compact radio receiver and selector mechanism for use in` a vehicle. This has been accomplished by providing a bracket or ledge for securing the receiver to the vehicle in strumentpanel or cowl board, and'supporting a selector mechanism from. said bracket so as to be accessible. from the edge of the instrument panel or cowl vboard and 0perable upon the receiver mechanism, and housed at least in part by said receiver bracket.

Another object of the invention is to provide a compact selector drive mechanism for a radio receiver that may be operated with a minimum of lost motion at a point somewhat remote from the tuningmechanism of the receiver. This has been accomplished by providing a non-yielding control member and a driven member onthe tunable means of said-receiver to eliminate any lost motion between the control member and the driven member.

Further objects and advantages of the present invention will be apparentV from the following description, reference being had to the accompanying drawings wherein a preferred embodiment of one form of the present invention is clearly shown. y

In the drawings: Fig. 1 is a perspective View of an automotive type of radio Vreceiver disclosing the present kinvention. Y

Y Fig. 2 isa face View thereofdisclosing the reis Yto mount lector -:mechanism' substantiallyv as indicatedr by ceiver and its adaptation for mounting on ai vrielevation disclosing its support from the vehicle etrneture, and is e View eubstentellyes indicate@ 5.

by the line and arrows 3- -3 of Fig. 2. Y, Fig. 4 is aplan View of the radio receiversubstantially asindicated by the arrow 410i Figt Fig-5 isa detailed view showing the selector meelneniern.,V it beine. n View Substantially-@feine dicatedrby the line and arrows 5-5 of lfigl, ,l vFig. 6 is Van eleva onalview o f the selector rneeheniern Substantially es indicated by the are. few ,efFie- 5,. a if Y w f.

7 is a side velevation of a selector mechai5 nisrn with certain parte shown in section srubstan-vr tially as indicated by the line and arrowljl-f-l of Fig, 6. l j Figis a Ytransverse sectional View cit-these@ the line and arrows -8-,- 8 of Fig. 6. 1 -r -V Figs. Sand l0 are details of th drive connecrtienfbeeween the Selector rmeehjnniemand the tunable elements of the receiver. Y 1l is a View illustrating aV radio installae tion with the selectormechanism at a remote peint. With particular reference tothe drawings, 20, isindicative of a radio receiver provided withla tuning shaft 2l. on which is mounted a gear or gears 22 meshing with the selector mechanism 2 3 by whichV the receiver mechanism may be 9.o-, tuated.` The receiver mechanism 20 is preferably enclosed within afcasing 24 having removable covers 25 and 26 held thereon by screw ,devices 2l and v28 respectively.' To opposite wallsof the 'i casing-24 are iixed brackets 29 and 30 by which the receiver structure may be supported from a pair of substantially parallel or spaced walls 3|' and 32. For convenience in such mounting a sunnertne breekei 33 ie Secured t0 thewel 3l 3.13@ has @1,1 @Dgll @Xtmsol 34 fC? SUPPOI? O one eide of the radio receiver mechanismas'is illustrated in Figs. 3 and 4. As regards the wall 32 this may have an angular ilangeV 35 to which the bracket 3l) may be attached. In securing'the casing 24 to these supports vibration absorbing members, V-wliichinay be `sponge' rubber or.` eqnivalent structure 36 are inserted betweenthev brackets 2 9 and 34 and between the bracket 36 anda clamp Washer 31 so that a bolt and sV I deviceY 38 may operate to firmly hold the braclet ze te the breeket 3.4 inem' deeiredmenner- J d I llowng out this method of.s u`pport` the ereeketllenesits eneelerextensien Serien-lee" 2 with apertured lugs 46 that substantially overlap with respect to the flange 35 of the wall member '32 and make provision for the reception of a screw and nut device 4| for supporting this end of the radio receiver. Vibration absorbing members 42 are. placed on either side of Vthe flange 35 so that one of the vsaine .willbeinterposed between it and the attaching lug "44).Y Byl this construction provision is made forr the readymounting and removal'of a radio receiver in the available space of a vehicle so asto position the instrument for convenient accessibility to an attendant with the elimination of undesirable ing having the readily removable covers 25 and 26 provide access'to the structure within the casing 24 such as for servicing or repairs which in many instances may be accomplished without removing the receiver from the vehicle.

The selector mechanism v23 is disclosed in detail in Figs. 5 to 8 inclusive; andv is supported from the bracket 30 by means of a screw or-similar device 45 passing through the angular extension39 of the bracket 3U and received by'a part 46 or 4`| of the saidselector" mechanism as indicated in Figs. 3 and 8 respectively. The Vselectormechanism is a compact one and when thus secured to the ledge 33 is ,so rconnected with the casing 24 that a driven pinion 48 is Viti-meshing relation with the'gear cir-gears 22 fixed to thev rtunablef'shaft 2| and hereinbeforeV referrednto.Y

The selectorv mechanism 'comprises a substantially U-shaped bracket' or channel member 49 having parallel flanges 58 and 5| and the bridge or 4web portion cut away substantially asatA 52. The flange 5| isapertured asv at 53 to providea window-way, and may include' an `apertured lug 54 for the reception of a lock switch mechanism. Acontrol shaft 55 is provided so as to drive Ythe pinion v48 and has appropriate journals in the flangesr 50 andl 5| as at 56 and 51respectively.-

Mounted on the control'shaft'Y 55 near-'the flange 5| is a windlass 58'grooved as at 59 for the recepltion of a cord or cable ijthat Yis trained over an idler 6| mounted ona stud 62 carried bythe flange 5|, andthence looped about a second and larger idler 63 carried by a sleeve-64 secured to the flange 5|, after which the cord or cable'60 is trained about Vand secured in ldriving relation to a drum 65.` The drum 65 has a recess portion `66 for the reception ci a tensioning spring 6l hooked to thek ends 68 of the cable 60 which operates vto take up all slack or keep the same taut. The iiange ofthe drum 65 may be notched as at 69 to allow; for the passage of the 'connexetionj-of the cable and thusprovides/a positive hook up between the cable and the drum which itdrives. Fixed to the web ofthe frame 49 is a bracket member lthat. supports a threaded stud 1| forming a pivot post for the drum 65, andconstitutingthe part 4l that cooperates in securing the mechanism 23 to the ledge 39 as hereinbefore described. Thebracket 'lvprovides an arm 12 that supports va lamp receptacle 'I3 designed to illuminateV a dial member '|4`carried by thedrum V65 in close juxtaposition'to the windoW-Way53 'illustrated in Fig. 8. The disc 'l1 is'of such diameter as respects the recess mentioned that when Vthedial strip 14 is placed against the wall 18 and the disc placed within this assembly and drawn Vdown upon the shoulder portion 16 of the Vhub l5 that the disc 'l1 will so firmly engage the dial strip'14 as to prevent its ready removal, and thus cause the dial strip 14 to moveY with the drum V65'in response to actuation of the control shaft 55.

As before stated the control shaft 55 is drivingly connected'to therpin'ion 48, after it passes :through the bearing 56 supported by the ange 50 of the frame 49. In order to limit the amount of rotation that may be given to the shaft 55 stop pins 88 and 8| are set into the flange 58 at a convenient place near the bearing 56 so that they will cooperate with the offsetlugs 82 or V83carried by Yone of theV rotation limiting washers 84. These rotation limiting washers or stop washers 84 are of a design illustrated inFig. 5 and are substantially identical in formation, each washer having a pair of radially extending lugs that are deflectedfrom the plane of the washer such that each lug 82 and 83 will project on opposite sides of the plane of said washer. When these washers are placed uponthe control shaft as illustratedv in Fig. 5, the offset lug of one washer will obviously be disposed substantially in overlapping relation with' theV oppositelyv extending offset lugs of an adjacent washer and thus provides for the exact limiting of rotative movement that may be given to the shaft 55, depending only upon the Anumber of stop washers that are used and the positioning of the stop pins and 8| in the flange 50 and the cooperation of a stop pin 85 set in the shaftl 55. As an example in the illustrated embodiment the stop mechanism is so proportioned as to provide a range of rotation for the'shaft 55 to the amount of about three and three-fourths complete revolution. Obviously the range of rotation may be Varied if so desired by changing the position of the stops Sil and 8|, or if thechange of limits amounts to a great one it may be accomplished by change in the number of stop washers assembled.

As before stated the sleeve 64 supports the idler 63, and it also makes provision for the journaling of the second control shaft 9|) that has a second bearing in the flangeV 5|] and is operable to actuate a volume control element 9| which has its connection in the receiver in the usual way. An escutcheon plate 92 may be secured to the bracket 3Q or the frame member 49 as may be desired and Vso 'as to-properly' cover the window-way 53 yet having an aperture 83 for the inspection of the dial 14 al1 as is substantially shown in Figs. l to 4 inclusive. The escutcheon plate is secured in place by nuts or like devices threaded on the members 5,7 and 64, so that the control knobs 94 and 95 passing therethrough make provision for actuating the mechanism of the receiver.

Connection of the selector mechanism with the receiver may be accomplished directly as illustrated in Figs. l, 3, 4, 5 and 6, as the connection may be a remote one as illustrated in Fig. 1l, where the selector mechanism 23 is secured to the instrument panel 32 in the usual way and has municati'ng' its motion t'o the mechanism within the case 24 through the gear connections 22 and 48. The selector 23 may be supported by means of spade bolts fixed to the instrument panel 32 as at |0| and passing through apertured ears or lugs |02 provided by a cover member |03. In the latter form of installation, thepinion 48 is separated or spaced from the selector mechanism 23, and a coupling member |05 is secured to the shaft 55 in its stead which member has driving connection with an element |06 housed within the connector 91 and that ultimately is drvingly secured to the pinion 48 within the case 24.

Whether the connection between the selector mechanism be direct or remote the engagement of the'pinion 48 and gear 22 is such as to eliminate back lash and to prevent any lost motion that might otherwise be present and thereby prevent accurate and synchronized movement between the station indicator and the tunable members of the receiver. This is accomplished by splitting the gear 22 into two parts 22al andA 22h, the rst of which is rigidly fixed to a hub member 22e while the other is capable of relation thereon. The amount of relative rotation of the gear parts 22a and 22h is limited by spring post I0 of the part 22h projecting through a slot of the part 22a. A similar spring post ||2 is struck out from or provided on the gear part 22a and makes provision for the anchorage of a spring ||3 for the relative rotative biasing of the gear parts 22a; and 22D. This construction provides a gear with somewhat expansible teeth ||5 for meshing with, and substantially filling the space between the teeth of the pinion 48, so that any movement of the control mechanism will be immediately transmitted to shaft 2|-to be moved. v

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

What is claimed is as follows: K l. In an automotive radio receiver, a casing within which the receiver is enclosed, aselector mechanism for said receiver comprising an attaching bracket external said casing secured thereto, a control shaft journaled in said bracket, and means for imparting the movement of said control shaft to a tuning element of said receiver located within said casing, cooperating provisions carried by said bracket and control shaft for limiting the movement of said shaft, and means provided by said receiver casing and said bracket for supporting the radio receiver upon an automotive vehicle.

2. A radio receiver adapted to be installed on a motor vehicle or the like between the motor board and the instrument panel comprising a casing adapted to form an enclosure for thereceiver proper including the tuning elements thereof, a bracket secured to the receiver casing, a cooperative bracket secured to the `motor board and means for resiliently attaching said `two brackets one to the other, aledge mounted on said receiver casing oppositely to said bracket, said ledge provided with apertured ears and means including a cooperating element for resiliently connecting said apertured ears to said instrument panel, a selector mechanism for said tuning elements including a controller carried by said ledge var'idop'eratively connected to lthe receiver tuning elements, indicatingmeans carried by said ledge andl means connecting said controller and indicating meanswhereby said indis eating means may respond to the movements of said controller.

3; A radio receiver adapted to'be installed on a motor vehicle or the like between the motor board and the instrument Vpanel comprising, a casing adapted to form an enclosure for the receiver proper including the tuning elements thereof, a bracket secured to the receiver casing,

a cooperating bracket secured to the motor board and means for resiliently attaching said Y two Y brackets one to the other, a ledge mounted on said receiver casing oppositely tofsaid bracketlk said ledge being provided with apertured ears and means including a cooperating element for resiliently connecting said apertured ears to said instrument panel, a selector mechanism for said tuning elements including a controller carried by said ledge and operatively connected .to the receiver tuning elements, indicating means car-V ried by said ledge, a second controller carried by Y element to the indicating means whereby said troller.

4. In an automotive radio receiver enclosed within a casing, said receiver being provided with at least onetuning element Within said casing, a bracket external said casing but secured thereto said bracket providing means by which the receiver may be supported, a controller mechanism mounted directly4 on said bracket, connections through said lcasing between the tuning element of said receiver and said controller mechanism indicating means carried by said bracket and means connecting said controller and said indicating means whereby the indicator may respond to the movement of the controller.

5. In an automotivereceiver enclosed within a casing, said receiver being provided with at least one tuning element Within the casing, a bracket secured to an outer face of the receiver casing and provided with means by which the relatter may respond to movements of said conceiver casing may be supported, a controller mechanism 'mounted directly on said bracket, connections through said casing between thetuning element of vthe receiver and the controller Vvmechanism, indicating means carried by said bracketV external the casing and movable inv response to said controller, an escutcheon plateffor the indicator and means for supporting the receiver and its control mechanism with said escutcheon plate Ysubstantially coincident with,A

the plane of an instrument panel of an autovr 

